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      <title>Class SessionMessage | HiAPI-C# 2025 </title>
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        <article data-uid="Hi.MachiningProcs.SessionMessage">



  <h1 id="Hi_MachiningProcs_SessionMessage" data-uid="Hi.MachiningProcs.SessionMessage" class="text-break">
Class SessionMessage  
  </h1>

  <div class="facts text-secondary">
    <dl><dt>Namespace</dt><dd><a class="xref" href="Hi.html">Hi</a>.<a class="xref" href="Hi.MachiningProcs.html">MachiningProcs</a></dd></dl>
  <dl><dt>Assembly</dt><dd>HiMech.dll</dd></dl>
  </div>

  <div class="markdown summary"><p>Represents a message in the machining process that can contain various types of data
such as source commands, machining steps, exceptions, and tagged messages.</p>
</div>
  <div class="markdown conceptual"></div>

  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public class SessionMessage</code></pre>
  </div>




  <dl class="typelist inheritance">
    <dt>Inheritance</dt>
    <dd>
      <div><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object">object</a></div>
      <div><span class="xref">SessionMessage</span></div>
    </dd>
  </dl>



  <dl class="typelist inheritedMembers">
    <dt>Inherited Members</dt>
    <dd>
    <div>
      <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.equals#system-object-equals(system-object)">object.Equals(object)</a>
    </div>
    <div>
      <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.equals#system-object-equals(system-object-system-object)">object.Equals(object, object)</a>
    </div>
    <div>
      <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.gethashcode">object.GetHashCode()</a>
    </div>
    <div>
      <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.gettype">object.GetType()</a>
    </div>
    <div>
      <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.memberwiseclone">object.MemberwiseClone()</a>
    </div>
    <div>
      <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.referenceequals">object.ReferenceEquals(object, object)</a>
    </div>
  </dd></dl>

  <dl class="typelist extensionMethods">
    <dt>Extension Methods</dt>
    <dd>
  <div>
      <a class="xref" href="Hi.Common.DuplicateUtil.html#Hi_Common_DuplicateUtil_TryDuplicate__1___0_System_Object___">DuplicateUtil.TryDuplicate&lt;TSelf&gt;(TSelf, params object[])</a>
  </div>
  <div>
      <a class="xref" href="Hi.Common.InvokeUtil.html#Hi_Common_InvokeUtil_SelfInvoke__1___0_System_Action___0__">InvokeUtil.SelfInvoke&lt;TSrc&gt;(TSrc, Action&lt;TSrc&gt;)</a>
  </div>
  <div>
      <a class="xref" href="Hi.Common.InvokeUtil.html#Hi_Common_InvokeUtil_SelfInvoke__2___0_System_Func___0___1__">InvokeUtil.SelfInvoke&lt;TSrc, TDst&gt;(TSrc, Func&lt;TSrc, TDst&gt;)</a>
  </div>
  <div>
      <a class="xref" href="Hi.Coloring.ColorUtil.html#Hi_Coloring_ColorUtil_GetGloomyColor_System_Object_System_Double_System_Double_">ColorUtil.GetGloomyColor(object, double, double)</a>
  </div>
  <div>
      <a class="xref" href="Hi.Common.NameUtil.html#Hi_Common_NameUtil_GetSelectionName_System_Object_">NameUtil.GetSelectionName(object)</a>
  </div>
  <div>
      <a class="xref" href="Hi.Common.StringUtil.html#Hi_Common_StringUtil_GetPropertyStringIfToStringNotOverloaded_System_Object_System_Boolean_System_Boolean_">StringUtil.GetPropertyStringIfToStringNotOverloaded(object, bool, bool)</a>
  </div>
  <div>
      <a class="xref" href="Hi.Parallels.LockUtil.html#Hi_Parallels_LockUtil_Lock_System_Object_">LockUtil.Lock(object)</a>
  </div>
  </dd></dl>





  <h2 class="section" id="constructors">Constructors
</h2>


  <a id="Hi_MachiningProcs_SessionMessage__ctor_" data-uid="Hi.MachiningProcs.SessionMessage.#ctor*"></a>

  <h3 id="Hi_MachiningProcs_SessionMessage__ctor_System_Int32_System_Object_" data-uid="Hi.MachiningProcs.SessionMessage.#ctor(System.Int32,System.Object)">
  SessionMessage(int, object)
  
  </h3>

  <div class="markdown level1 summary"><p>Initializes a new instance of the <a class="xref" href="Hi.MachiningProcs.SessionMessage.html">SessionMessage</a> class.</p>
</div>
  <div class="markdown level1 conceptual"></div>

  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public SessionMessage(int index, object src)</code></pre>
  </div>

  <h4 class="section">Parameters</h4>
  <dl class="parameters">
    <dt><code>index</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></dt>
    <dd><p>The index of the message.</p>
</dd>
    <dt><code>src</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object">object</a></dt>
    <dd><p>The source data.</p>
</dd>
  </dl>












  <h2 class="section" id="properties">Properties
</h2>


  <a id="Hi_MachiningProcs_SessionMessage_ClStripPos_" data-uid="Hi.MachiningProcs.SessionMessage.ClStripPos*"></a>

  <h3 id="Hi_MachiningProcs_SessionMessage_ClStripPos" data-uid="Hi.MachiningProcs.SessionMessage.ClStripPos">
  ClStripPos
  
  </h3>

  <div class="markdown level1 summary"><p>Gets or sets the cutter location strip position.
gets null if the <a class="xref" href="Hi.MachiningProcs.SessionMessage.html#Hi_MachiningProcs_SessionMessage_Data">Data</a> is not <a class="xref" href="Hi.MachiningProcs.SessionMessage.html#Hi_MachiningProcs_SessionMessage_ClStripPos">ClStripPos</a>.</p>
</div>
  <div class="markdown level1 conceptual"></div>

  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public ClStripPos ClStripPos { get; set; }</code></pre>
  </div>





  <h4 class="section">Property Value</h4>
  <dl class="parameters">
    <dt><a class="xref" href="Hi.CutterLocations.ClStrips.ClStripPos.html">ClStripPos</a></dt>
    <dd></dd>
  </dl>








  <a id="Hi_MachiningProcs_SessionMessage_Data_" data-uid="Hi.MachiningProcs.SessionMessage.Data*"></a>

  <h3 id="Hi_MachiningProcs_SessionMessage_Data" data-uid="Hi.MachiningProcs.SessionMessage.Data">
  Data
  
  </h3>

  <div class="markdown level1 summary"><p>Gets or sets the data contained in the message.</p>
</div>
  <div class="markdown level1 conceptual"></div>

  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public object Data { get; set; }</code></pre>
  </div>





  <h4 class="section">Property Value</h4>
  <dl class="parameters">
    <dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object">object</a></dt>
    <dd></dd>
  </dl>








  <a id="Hi_MachiningProcs_SessionMessage_DirectInstantSourceCommand_" data-uid="Hi.MachiningProcs.SessionMessage.DirectInstantSourceCommand*"></a>

  <h3 id="Hi_MachiningProcs_SessionMessage_DirectInstantSourceCommand" data-uid="Hi.MachiningProcs.SessionMessage.DirectInstantSourceCommand">
  DirectInstantSourceCommand
  
  </h3>

  <div class="markdown level1 summary"><p>Gets or sets the direct source command from the data.
gets null if the <a class="xref" href="Hi.MachiningProcs.SessionMessage.html#Hi_MachiningProcs_SessionMessage_Data">Data</a> is not <a class="xref" href="Hi.Common.FileLines.IIndexedFileLine.html">IIndexedFileLine</a>.</p>
</div>
  <div class="markdown level1 conceptual"></div>

  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public IIndexedFileLine DirectInstantSourceCommand { get; set; }</code></pre>
  </div>





  <h4 class="section">Property Value</h4>
  <dl class="parameters">
    <dt><a class="xref" href="Hi.Common.FileLines.IIndexedFileLine.html">IIndexedFileLine</a></dt>
    <dd></dd>
  </dl>








  <a id="Hi_MachiningProcs_SessionMessage_Exception_" data-uid="Hi.MachiningProcs.SessionMessage.Exception*"></a>

  <h3 id="Hi_MachiningProcs_SessionMessage_Exception" data-uid="Hi.MachiningProcs.SessionMessage.Exception">
  Exception
  
  </h3>

  <div class="markdown level1 summary"><p>Gets or sets the exception.
gets null if the <a class="xref" href="Hi.MachiningProcs.SessionMessage.html#Hi_MachiningProcs_SessionMessage_Data">Data</a> is not <a class="xref" href="Hi.MachiningProcs.SessionMessage.html#Hi_MachiningProcs_SessionMessage_Exception">Exception</a>.</p>
</div>
  <div class="markdown level1 conceptual"></div>

  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public Exception Exception { get; set; }</code></pre>
  </div>





  <h4 class="section">Property Value</h4>
  <dl class="parameters">
    <dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.exception">Exception</a></dt>
    <dd></dd>
  </dl>








  <a id="Hi_MachiningProcs_SessionMessage_Index_" data-uid="Hi.MachiningProcs.SessionMessage.Index*"></a>

  <h3 id="Hi_MachiningProcs_SessionMessage_Index" data-uid="Hi.MachiningProcs.SessionMessage.Index">
  Index
  
  </h3>

  <div class="markdown level1 summary"><p>Gets or sets the index of the message.
The UI name is 'Serial.'.</p>
</div>
  <div class="markdown level1 conceptual"></div>

  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">[Present(&quot;Message Index&quot;, &quot;M.I.&quot;, PhysicsUnit.None, &quot;G&quot;)]
public int Index { get; set; }</code></pre>
  </div>





  <h4 class="section">Property Value</h4>
  <dl class="parameters">
    <dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></dt>
    <dd></dd>
  </dl>








  <a id="Hi_MachiningProcs_SessionMessage_InstantSourceCommand_" data-uid="Hi.MachiningProcs.SessionMessage.InstantSourceCommand*"></a>

  <h3 id="Hi_MachiningProcs_SessionMessage_InstantSourceCommand" data-uid="Hi.MachiningProcs.SessionMessage.InstantSourceCommand">
  InstantSourceCommand
  
  </h3>

  <div class="markdown level1 summary"><p>Gets the source command, either directly or from the associated milling step.
gets null if both <a class="xref" href="Hi.MachiningProcs.SessionMessage.html#Hi_MachiningProcs_SessionMessage_DirectInstantSourceCommand">DirectInstantSourceCommand</a> and the SourceCommand
from <a class="xref" href="Hi.MachiningProcs.SessionMessage.html#Hi_MachiningProcs_SessionMessage_ClStripPos">ClStripPos</a>'s State are null.</p>
</div>
  <div class="markdown level1 conceptual"></div>

  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public IIndexedFileLine InstantSourceCommand { get; }</code></pre>
  </div>





  <h4 class="section">Property Value</h4>
  <dl class="parameters">
    <dt><a class="xref" href="Hi.Common.FileLines.IIndexedFileLine.html">IIndexedFileLine</a></dt>
    <dd></dd>
  </dl>








  <a id="Hi_MachiningProcs_SessionMessage_MachiningStep_" data-uid="Hi.MachiningProcs.SessionMessage.MachiningStep*"></a>

  <h3 id="Hi_MachiningProcs_SessionMessage_MachiningStep" data-uid="Hi.MachiningProcs.SessionMessage.MachiningStep">
  MachiningStep
  
  </h3>

  <div class="markdown level1 summary"><p>Gets the milling step from the cutter location strip position.
gets null if <a class="xref" href="Hi.MachiningProcs.SessionMessage.html#Hi_MachiningProcs_SessionMessage_ClStripPos">ClStripPos</a> is null or its State is not a <a class="xref" href="Hi.MachiningProcs.SessionMessage.html#Hi_MachiningProcs_SessionMessage_MachiningStep">MachiningStep</a>.</p>
</div>
  <div class="markdown level1 conceptual"></div>

  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public MachiningStep MachiningStep { get; }</code></pre>
  </div>





  <h4 class="section">Property Value</h4>
  <dl class="parameters">
    <dt><a class="xref" href="Hi.MachiningSteps.MachiningStep.html">MachiningStep</a></dt>
    <dd></dd>
  </dl>








  <a id="Hi_MachiningProcs_SessionMessage_Message_" data-uid="Hi.MachiningProcs.SessionMessage.Message*"></a>

  <h3 id="Hi_MachiningProcs_SessionMessage_Message" data-uid="Hi.MachiningProcs.SessionMessage.Message">
  Message
  
  </h3>

  <div class="markdown level1 summary"><p>Gets the message text from either the multi-tag message or exception.
gets null if both <a class="xref" href="Hi.MachiningProcs.SessionMessage.html#Hi_MachiningProcs_SessionMessage_MultiTagMessage">MultiTagMessage</a> and <a class="xref" href="Hi.MachiningProcs.SessionMessage.html#Hi_MachiningProcs_SessionMessage_Exception">Exception</a> are null,
or if <a class="xref" href="Hi.MachiningProcs.SessionMessage.html#Hi_MachiningProcs_SessionMessage_MultiTagMessage">MultiTagMessage</a>.Message is null.</p>
</div>
  <div class="markdown level1 conceptual"></div>

  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">[Present(&quot;Message&quot;, &quot;Msg&quot;, PhysicsUnit.None, &quot;G&quot;)]
public string Message { get; }</code></pre>
  </div>





  <h4 class="section">Property Value</h4>
  <dl class="parameters">
    <dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.string">string</a></dt>
    <dd></dd>
  </dl>








  <a id="Hi_MachiningProcs_SessionMessage_MessageOrNcText_" data-uid="Hi.MachiningProcs.SessionMessage.MessageOrNcText*"></a>

  <h3 id="Hi_MachiningProcs_SessionMessage_MessageOrNcText" data-uid="Hi.MachiningProcs.SessionMessage.MessageOrNcText">
  MessageOrNcText
  
  </h3>

  <div class="markdown level1 summary"><p>Gets the message text or NC code text.
gets null if all sources (<a class="xref" href="Hi.MachiningProcs.SessionMessage.html#Hi_MachiningProcs_SessionMessage_InstantSourceCommand">InstantSourceCommand</a>, <a class="xref" href="Hi.MachiningProcs.SessionMessage.html#Hi_MachiningProcs_SessionMessage_MultiTagMessage">MultiTagMessage</a>,
<a class="xref" href="Hi.MachiningProcs.SessionMessage.html#Hi_MachiningProcs_SessionMessage_Exception">Exception</a>, and <a class="xref" href="Hi.MachiningProcs.SessionMessage.html#Hi_MachiningProcs_SessionMessage_Data">Data</a>) are null or cannot provide text.</p>
</div>
  <div class="markdown level1 conceptual"></div>

  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">[Present(&quot;Message/NC&quot;, &quot;Msg/NC&quot;, PhysicsUnit.None, &quot;G&quot;)]
public string MessageOrNcText { get; }</code></pre>
  </div>





  <h4 class="section">Property Value</h4>
  <dl class="parameters">
    <dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.string">string</a></dt>
    <dd></dd>
  </dl>








  <a id="Hi_MachiningProcs_SessionMessage_MessageRoleText_" data-uid="Hi.MachiningProcs.SessionMessage.MessageRoleText*"></a>

  <h3 id="Hi_MachiningProcs_SessionMessage_MessageRoleText" data-uid="Hi.MachiningProcs.SessionMessage.MessageRoleText">
  MessageRoleText
  
  </h3>

  <div class="markdown level1 summary"><p>Gets the message type text for UI display.</p>
</div>
  <div class="markdown level1 conceptual"></div>

  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">[Present(&quot;Role&quot;, &quot;Role&quot;, PhysicsUnit.None, &quot;G&quot;)]
public string MessageRoleText { get; }</code></pre>
  </div>





  <h4 class="section">Property Value</h4>
  <dl class="parameters">
    <dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.string">string</a></dt>
    <dd></dd>
  </dl>








  <a id="Hi_MachiningProcs_SessionMessage_MultiTagMessage_" data-uid="Hi.MachiningProcs.SessionMessage.MultiTagMessage*"></a>

  <h3 id="Hi_MachiningProcs_SessionMessage_MultiTagMessage" data-uid="Hi.MachiningProcs.SessionMessage.MultiTagMessage">
  MultiTagMessage
  
  </h3>

  <div class="markdown level1 summary"><p>Gets or sets the multi-tag message.
gets null if the <a class="xref" href="Hi.MachiningProcs.SessionMessage.html#Hi_MachiningProcs_SessionMessage_Data">Data</a> is not <a class="xref" href="Hi.MachiningProcs.SessionMessage.html#Hi_MachiningProcs_SessionMessage_MultiTagMessage">MultiTagMessage</a>.</p>
</div>
  <div class="markdown level1 conceptual"></div>

  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public MultiTagMessage MultiTagMessage { get; set; }</code></pre>
  </div>





  <h4 class="section">Property Value</h4>
  <dl class="parameters">
    <dt><a class="xref" href="Hi.Common.Messages.MultiTagMessage.html">MultiTagMessage</a></dt>
    <dd></dd>
  </dl>








  <a id="Hi_MachiningProcs_SessionMessage_Tags_" data-uid="Hi.MachiningProcs.SessionMessage.Tags*"></a>

  <h3 id="Hi_MachiningProcs_SessionMessage_Tags" data-uid="Hi.MachiningProcs.SessionMessage.Tags">
  Tags
  
  </h3>

  <div class="markdown level1 summary"><p>Gets the tags associated with the message.</p>
</div>
  <div class="markdown level1 conceptual"></div>

  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public HashSet&lt;string&gt; Tags { get; }</code></pre>
  </div>





  <h4 class="section">Property Value</h4>
  <dl class="parameters">
    <dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.hashset-1">HashSet</a>&lt;<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.string">string</a>&gt;</dt>
    <dd></dd>
  </dl>




  <h4 class="section" id="Hi_MachiningProcs_SessionMessage_Tags_remarks">Remarks</h4>
  <div class="markdown level1 remarks"><p>Different from <a class="xref" href="Hi.MachiningProcs.SessionMessage.html#Hi_MachiningProcs_SessionMessage_MultiTagMessage">MultiTagMessage</a>.<a class="xref" href="Hi.Common.Messages.MultiTagMessage.html#Hi_Common_Messages_MultiTagMessage_Tags">Tags</a>,
the Tags here includes the infomation of the <a class="xref" href="Hi.MachiningProcs.SessionMessage.html#Hi_MachiningProcs_SessionMessage_Data">Data</a>.</p>
</div>




  <h2 class="section" id="methods">Methods
</h2>


  <a id="Hi_MachiningProcs_SessionMessage_ToString_" data-uid="Hi.MachiningProcs.SessionMessage.ToString*"></a>

  <h3 id="Hi_MachiningProcs_SessionMessage_ToString" data-uid="Hi.MachiningProcs.SessionMessage.ToString">
  ToString()
  
  </h3>

  <div class="markdown level1 summary"><p>Returns a string representation of the message data.</p>
</div>
  <div class="markdown level1 conceptual"></div>

  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public override string ToString()</code></pre>
  </div>


  <h4 class="section">Returns</h4>
  <dl class="parameters">
    <dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.string">string</a></dt>
    <dd><p>A string representation of the message data.</p>
</dd>
  </dl>












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